Hi, I tested positive for type a flu 6 days ago. But, before I tested for the flu, I have felt like I had flu everyday for a year. Now, it's six days since I got a positive test, and the cbc, I took still shows I have something viral going on. Could this still be the flu causing my cbc to be out of whack? Or is it possible to have a virus that lingers in the body for years causing daily illness.